Container closure



Nov. 15, 1938. e. o. CCNNER CONTAINER CLOSURE Filed Aug. 6, 1936 INVENTOR Patented Nov. 15, 19 38 g 7 consumer; CLO-SURE;

( Li0ouneryiWheeling, W. Va.,. assignor to Wheeling Steel Corporation, Wheeling, W. Va., a corporation of Delaware Application August 6, 1936, Serial No. 94,630

5 Claims.

This invention relates to a closure for containers such as drums, pails or the like and, in particular, to a cover which is inexpensive to manufacture and capable of being firmly secured to the container.

Container closures of various types are now in use, but each is characterized by certain objectionable features. provided with a s'o-called ring type seal wherein a flanged cover is secured to a container by a frangible clamping ring or channel. While this is a very effective form of seal, it is relatively expensive. Lug-type closures have also been used but have been found lacking in effective sealing qualities. A further objection is that the operation of bending theholding lugs often mars the finish on the container which is undesirable. I g

I have invented a closure which overcomes the aforementioned objections to such articles as previously manufactured. In accordance with. my invention, I provide a closure comprising a central or body portion surrounded by a pressed groove or channel adapted to receive the false wire around a container opening when the closure is placed thereover. The extreme edge of the closure, i. e. the outer wall or side of the groove or channel, is provided with cut-outs which facilitatecrimping the edge around the false wire. Preferably, the cut-outs are spaced inwardly of the edge of the closure, and the material between the cut-outs and the closure edge is displaced slightly from its original plane.

A present preferred embodiment of the invention is illustrated in the accompanying drawing.

In the drawing,

Fig. 1 is a partial plan view of a closurein accordance with the invention;

Fig. 2 is a partial elevation;

Fig. 3 is a sectional view along the line III-III of Fig. 2;

Fig. 4 is a sectional view along the line IV-IV of Fig. 2;

Fig. 5 is a partial plan View of the closure applied to a container;

Fig. 6 is a partial elevation thereof;

Fig. '7 is a sectional view along the line V'IIVII of Fig. 6; and

Fig. 8 is a sectional view along the line VIII-VIII of Fig. 6.

Referring now in detail to the drawing, a closure in accordance with my invention comprises a central or body portion I0. A downwardly displaced bead ll surrounds the central portion I0, and contributes rigidity thereto. A channel or Certain closures have been groove [2 is formed beyond the bead II. The closure is preferably drawn from flat sheet metal stock in suitable drawing dies. The groove or channel I2 is adapted to receive the false wire of a' container when the closure is placed thereon. Figs. 7 and 8 show a container [3 having a false wire 14 surrounding an opening therein or an.

l5, for a purpose which will appear later, but

may be simply slits parallel to the flange edge.

The closure may be applied to a container as already indicated and, if desired, a sealing gasket may be disposed in the groove I2 for engagement with the falsewire Hi. When the cover has been seated on the container and pressed'down tightly, the edge of the flange or wall I5 is bent around the false 'wire, as shown inFigs. 7 and 8. This operation crimps the edge of the flange l5, partly closes the triangular cut-outs l6, and increases the extent to which the loops I! are displaced from the normal plane of the flange 15.

It will be observed that the extreme edge of the flange l5 clears the side wall of the container I3, so that the finish on the latter will not be marred by the sealing operation. The flange l5 may be bent around the false wire by any convenient means already known.

Although the closure thus applied effectively seals the container, it can be easily removed. The flange l5 may easily be bentoutwardly by the insertion of any sharp instrument in, say every fifth loop or eye l1, and pulling up on the outer end of the instrument. With the flange thus straightened, the closure can readily be freed from the container, as by tapping the flange IS with a hammer. The closure described and illustrated herein can be made at a cost lower than that of lugtype covers or plain covers plus a ring-type seal for cooperating therewith. In addition, it is more effective in sealing'a container than a lug-type cover, and the application thereof to the container does not mar the finish on the latter.

Although I have illustrated and described but one preferred form of the invention, it will be apparent that changes thereinmay be made without departing from the spirit thereof or the scope of the appended claims.

I claim:

1. A container closure having a continuous down-turned peripheral flange, holes spaced along said flange and inwardly of the edge thereof, portions of said edge being bent outwardly of the general plane of said flange adjacent said holes only.

2. A container closure having a continuous down-turned flange adapted to be curled around the false wire of a container, holes adjacent the flange edge forming lugs therebetween capable of bending inwardly without interference with each other, the edge of the flange being continuous across said holes, but bent out of the general plane of the flange adjacent the holes.

3. A container closure comprising a body portion and down-turned flange thereon, with perforations spaced slightly from the flange edge, the edge being deformed outwardly adjacent the perforations only.

4. The closure defined by claim 3 characterized by said perforations having an edge parallel to the edge of said flange.

5. A sheet metal closure comprising a central portion, a peripheral groove or channel, and perforations adjacent the outer edge of the groove, but spaced slightly therefrom, the edge of the closure being displaced from its initial position adjacent said perforations to facilitate crimping said edge around the false wire of a container.

GUY O. CONNER. 

